/*
 * Copyright 2018-present Open Networking Foundation
 * Copyright © 2020 camunda services GmbH (info@camunda.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.atomix.cluster.discovery;

import io.atomix.cluster.Node;
import io.atomix.utils.event.ListenerService;
import java.util.Set;

/** Node discovery service. */
public interface NodeDiscoveryService
    extends ListenerService<NodeDiscoveryEvent, NodeDiscoveryEventListener> {

  /**
   * Returns the set of active nodes.
   *
   * @return the set of active nodes
   */
  Set<Node> getNodes();
}
